The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2025
Filed:
Mar. 10, 2022
International Business Machines Corporation, Armonk, NY (US);
Kangguo Cheng, Schenectady, NY (US);
International Businesss Machines Corporation, Armonk, NY (US);
Abstract
A phase-change memory device with reduced heater size includes a first conductive structure within a first dielectric layer. A heater element is located within a second dielectric layer disposed above the first conductive structure. The heater element includes a third dielectric layer defining a perimeter, a top portion of a heater material layer partially overlapping the perimeter of the third dielectric layer, and a bottom portion of the heater material layer overlapping the perimeter of the third dielectric layer. The bottom portion of the heater material layer is in contact with the first conductive structure. A phase-change material is located above the heater element with a bottom surface of the phase-change material being in contact with the top portion of the heater material layer. The phase-change memory device further includes a second conductive structure located above the phase-change material.